Abstract: At present, the installed capacity of renewable energy in China is growing rapidly. However, differences of renewable energy stations in access nodes, grid connection structures, and organizational modes lead to unclear grid-integration characteristics, posing a critical challenge to power system planning. This paper uses the eigenvector centrality method to classify grid-accessible nodes, and combines different organizational modes and access structures to build typical access scenarios for simulation. An evaluation index system is established covering economy, reliability, and settlement convenience. Comparative analysis results show that short connections with fewer power flow constraints have better economic performance, with construction costs reduced by 3%~12% compared with alternative schemes. Direct connection at conventional nodes offers high reliability, yet elaborate structures are needed to improve system resilience under extreme weather conditions. In addition, Metering and liability allocation become complicated and settlement convenience declines markedly when the number of access entities exceeds four. This work provides a theoretical references for refined power system planning.